Machine for sealing and crimping tubes.



E. W. GAUBE, DEGD.

I. A. GAUBE, EXECUTRIX. MACHINE FOR SEALING AND CRIMPING TUBES.

APPLICATION FILED NOV: 19. 1913- Q Patented Sept. 28, 1915.

pm as a ERNEST W. GAUBE,

OF CLEVELAND, OHIO; IDA A.

GAUBE EXECUTRIX OF SAID ERNEST W. GAUBE, DECEASED.

MACHINE FOR SEALING AND CRIMPIN G TUBES.

Specification of Letters Patent.

Application filed November 19, 1918. Serial No.

ful Improvement in Machines for Sealing and Crimping Tubes, of which the following is a specification, the principle of the invention best mode in which I applying that principle, it from other inventions.

he general purpose of this invention has been sufficiently indicated by the title. Its more particular adaptation is for the closing and sealing of tubes composed of thin flexible material after the same have been filled through an open end to be thus closed.

Heretofore, inso far as I have become aware, tubes of this character have been closed rather than actually sealed. Hermetical sealing is either impracticable or else too expensive.

y invention avoids the necessity of employing any conjunctive fastening element whatsoever.

have contemplated so as to distinguish factorily accomplish the desired result,

eration and readily manipulated; and which will be of durable and economical manufacture.

The inventive conception is embodied in hereinafter explained and V ,variously combined in the claims, while the various mechanical forms in which g and particular descrip tion thereof together set forth in detail one my invention, the disclosed means however, being but one of the prin clple of my invention may be applied.

Referring now to the drawing: Figure I showing such actuating Fig. III is a plan of Fig. elevation ofone detail in a different tion from that seen in Figs. *igzis a horizontal section on line V-V of Fig. I lookingdownwardly. Fig. VI is a vertical section on line VI-VI of Fig. I looking in the direction of the arrows. Fig.

, represents a tube closed after the man being herein explained and the device which is simple in op- Patented Sept. 28, 1915.. 801,795.

ner of my invention. Fig. VIII is an end view of the inventive closure. Fig. IX is a section of the closure taken longitudinally of the tube.

more provided real-wardly adjacent the sur e lever 12, as will inspection of Fig. I, the medium of a pin 16 extending through one or the other of these openings (here the one nearest the handle) and a link 17 which constitutes the articulatingagency between the pin 16 and anotherpin 18 extending pins is held in place by screws 19. In this manner as will be readily understood reciprocation of the lever 12 up and down contrives to raise and lower the plunger 9, while tl change in the pivoting the lever 12 is adopted.

A right-angled guide member is carried upon the upper front of the plunger 9. This guide memb er comprises a doWn-' wardly extending forward portion 20 and is fulcrumed through forward upper sur a rearwardly extending horizontal portion which latter is adapted tobe seate in a suitable recess in and flush with the face of the plunger 9. The portion is adapted to lie in the slot 7 and move therein. As so positioned it constitutes an abutting plate intended to limit the insertion of the tubes to be operated upon. Superimposed upon the plunger and the guide member just described is a plate 22. This plate is fixed to the plunger through the medium of a screw 23, and furthermore to opposite ends of the guide member by the smaller screws 24. The forward edge of the plate 22 projects beyond the portion 20 a distance substantially correspondfso concavities respectively be hereinafter explained.

ing to the depth of the surface 6. It serves the function of a compressing jaw. Such projecting edge of the plate 22 has somewhat more than half of its under surface corrugated. These corrugations are alined laterally as best seen in Fig. I. The remainder of such under surface is flat and preferably slightly elevated with respect to the line of greatest downward projection o the corrugited surface 25 for a purpose to The surface of that portion of the plate 22 which is over the fiat under surface is furthermore beveled as most clearly seen in Fig. 11. The lower forward edge of such beveled surface 26, in this exemplification, coincides with the forward edge of slightly to the rear of the forward surface of the corrugated portion 25. The reason for this will also be elucidated later. A bar 27 rests upon the surface 6 an against two spacer members corresponding in thickness with the guide 20 which are m terposed between the bar 27 and pedestal 2 at each end. The bar 27 and spacer members 28 are simultaneously aflixed to the pedestal by means of screws 29, The upper surface of the bar 27 corresponds with the under surface of so much of the plate as projects forwardly beyond the portion 20. As such it comprises a complementary jaw having above a corrugated surface 30 and a flat surface 31, in line respectively with the opposed surfaces of the upper movable jaw. The vertical planes of the projections and of the corrugated portion 30 are purposely. alternate with respect to the projections and concavities of the corrugated portion 25 of the plate 22. It will be comprehended therefore, that the corrugated surfaces of the jaws are capable of partially dove-tailing with each other when their fiat-surfaces abut. The slight elevation of the under surface of the upper movable jaw effects the desired intersection on the part of the opposed corrugated surfaces as represented in Fig. IV.

The operation of my machine is as follows: Let it be assumed that the-plunger 9 cause said jaws the flat under surface and mounted for movement toward of the the jaws are separated as shown in and that a tube 32 of flexible material which has one end closed with the cap 33, has been filled through its opposite open end 33. Such open end is then inserted between the opposed flat surfaces of the jaws and against the abutting plate 20 and thereafter the lever 12 actuated in a downward direction to to approach each other and thereby draw two opposite sides 35 and 36 of the tube toward one another and compress the extremities of the sides 35 and 36 into close contact with each other as at 37. This portion 36 is then made to assume the relationship to the tube of a partial machine has been elevated, whereby the body of fold by bending the tube upwardly and to the rear and over the beveled surface 26. During this manipulation the recession of the forward edge which forms the junction between the beveled surface 26 and the under surface assists in avoiding too sharp a bend. Next the jaws are again separated and such partial fold compressed to a complete fold and the tube again bent upwardly and to the rear as before. Finally the jaws are again separated and the second partial fold which has just been imparted is compressed toward and together with the first fold between the corrugated surfaces so as to become crimpe as designated by the reference character 38. The degree of compression depends upon the extent of intersection of the corrugated surfaces of the jaws, practice has however demonstrated that the extent of such intersection may be comparatively slight and yet accomplish a sealed closure from which even compounds of medicinal fluid cannot leak.

My invention being described with sufficient thoroughness, what I desire to secure by Letters Patent and therefore claim specifically, is:

1. A tube sealing and crimping machine comprising in combination, two members movable relative to each other, the opposed surfaces of said members being corrugate an abutting plate transversely adjacent sai surfaces, and means for effecting such relative movement.

2. A tube sealing and crimping machine comprising in combination, a standard provided with an opening and having a corrugated edge laterally adjacent said opening, a plunger mounted for movement in such opening, a member carried by and pro ecting therefrom said plunger, said member having a corrugated surface opposed to sai edge,

3. A tube sealing and crimping machine comprising in combination, a standard having an upper surface corrugated, a member and away from such surface, said member having a corrugated surface opposed to said first mentioned surface, the corrugations of said sur and means for actuating said plunger. I

projection of said plunger corresponding With the direction of corrugations, a cooperating member carried by said plunger and pro ecting beyond said plate, sa1dco6perfirst mentioned corrugatlons, and means for actuating said plunger.

5. A tube sealing and crimping machine comprising in combination, a pair of jaws movable relative to each other, one of said having an obliquely beveled surface,

comprising in combination, a pair of jaws movable relative to each other, one of said 6. A tube sealing and crimping machine jaws having an edge recessed with respect to v pro ecting therefrom, means for actuating said'plunger, a stationary jaw interposed in the path of movement of said first mentioned jaw, and an abutting plate carried by said plunger, said plate being recessed relative to corresponding edges of said jaws respectively and movable past the opposite side of the stationary of said jaws.

8. A tube sealing and crimping machine Signed by me, this 15th day of Nov. 1913.

ERNEST W. GAUBE. Attested by- MARY COLEMAN, A. L. SCHLEGEL. 

